Loading-machine.



R. T. MOKEEN.

LOADING MAGHINE.

APPLICATION FILED SEPT. 20, 1909.

Patented Sept. 5,1911.

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R. T. MOKEEN.

` LOADING MACHINE. APYLIOATION FILED SBF120, 1909.

1,002,534, Patented sept.5,1911.

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R. T. MOKEEN.

LOADING MACHINE.

. PPLIOATION FILED SEPT. zo. 1909.

Patented sept. 5,1911.4

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W' es se@ [7m/enter m www n/m3 RICHARD T. MGKEEN, 0F SILERVILLE,KENTUCKY.

LOADING-MACHINE.

Speocation of Letters Patent.

Patented Sept. 5, 1911.

Application filed September 20, 1909. Serial N o. 518,460.

To all whom it may concern.'

Be it 'known that I, RICHARD T. MCKEEN, a citizen of the United States,residing at the city of Silerville, in the county of Whit-- ley andState of Kentucky, have invented certain new and useful Improvements inLoading-Machines, of which the following is aspecification.

In the mining of coal I will describe one system so that my inventionand its objects and purposes will more readily be understood. The systemI shall describe contemplates permanent main entries one thousand feet,more or less apart, with sutii cient coal left on each side to supportroof over entries, and cross entries driven three hundred to fourhundred feet apart which are abandoned when coal is taken out. Tracksare laid in these cross entries for carrying out the coal and the carsrunning on them are known as mine cars. Beginning on these cross entriesat a point six feet beyond the pillar supporting main entry a roomfourteen feet or more wide is driven between cross entries, parallel tomain entry. Coal is then under-cut to depth of six feet by continuouselectric coal mining machine. The ledge of coal along which theunder-cutting is progressing is called the face7 The coal under cut isthen shot down in the usual way. By methods now in vogue it is shoveledup by hand or by some of the ordinary loading machines, which progressis very slow and unsatisfactory.

In carrying out my invention I place a track along the face of the coalwhere it is being mined and under-shot. This track is portable and islaid eight feet from and parallel to face of coal and cross entry track.Of course the track will be moved whenever necessary. This portabletrack is preferably of same gage as track for mine cars. On thisportable track I run and operate my loading machine. This loadingmachine is, (for the workit accomplishes) cheap of manufacture, simplein construction and ecient in use.

One of the features of my invention consists in providing a truck whichvshall be self propelling and carry back and forth along the workingface of the coal a scoop or shovel.

Another feature of my invention consists in providing on the truck acrane mounted at right angles to direction of travel of truck.

Another feature of my invention consists in supporting the crane or boomthereof on the side of track nearest the face of coal on a lifting jackby means of which the end of the crane boom is-raised or lowered overthe coal to be handled.

Another feature consists in providing simple sheave, drum, cable andbrake mechanism in connection with an electric motor on the truck whichcarries the loading machine for operating the scoop or shovel.

Another feature consists in providing a loading scoop or shovel openonly at the top and front end.

Other features and advantages of construction will readily becomeapparent from the following description.

In the accompanying drawing forming part of this specification, Figure 1is a diagram of a coal mining system. Fig. 2 is a plan view of my coalloading machine. Fig. 3 a side elevation with the scoop and derrick downin position to take a load of coal. Fig. 4 a side elevation with thescoop and derrick elevated, ready to drop the coal into the mine car.Fig. 5 is a section through electric truck which carries the loadingmachine to illustrate construction, taken at line 5, 5, of Fig. 2. Fig.6 is a section through trolley truck taken at line 6, 6, of Fig. 2.

In the drawings the entry is marked 1, the lcross entry 2, the face ofcoal.3, the track in cross entry 11, the mine car 5, the track in frontof face of coal on which my machine operates 6, the electric truck ormachine carrying truck 7.

The electric truck 7 which carries my coal loading machine is of anydesired size, contour and construction, operating on wheels 8 on thetrack 6. This truck 7 carries a reversible motor 9. A crane is mountedon the truck 7 at right angles to direction of travel of the truck andis hinged at 10 to frame 12 on side of truck opposite to face of coal,at about the height opposite of face of coal, at about the height of thecoal seam and is supported on the side of truck 7 nearest the coal by alifting jack 13; this jack 13 being suitably connected to the truck 7and moving with it. Said jack supports the crane, being connected atpoint 14C to the arm or boom of the crane and by means of this jack 13the end of crane boom top carrying the loading scoop over coal to behandled, is raised or lowered, as required, and desired. The jack isoperated through medium of handle `16 (see Fig. 5). The crane may besupported on the electric truck 7 in any other convenient or desiredmanner.

The crane boom is constructed of two parallel iron .or steel I beams 15,braced on top by cross bars or cross braces 17, with an iron plate 1 8,riveted to lower side, which rests on head 19 at top of jack 13, (seeparticularly Figs. 4 and 5). k'Io the end of the I beams at end of craneboom I connect by strips or brackets 20, a loading scoop or shovel 21,scoop shaped as shown, open at 22 and front end 23, at its rear,carrying a hinged doorl 24; this door 24 is closed by a latch or catch26 and a spring bolt connection 27, and operated through medium of cable25, the pulling of which opens the door, (see particularly Fig. 4). Theshovel or scoop 21 at its side carries brackets 20 in which aresupported rollers 29 one on each side of the I beam; on these rollers 29the scoop 21 travels up and down on the I beams and consequently betweenthe I beams, to vand away from the coal to be loaded or dumped asdesired (see particularly Fig. 6). Of course I may employ any other formor construction of scoop or shovel and supporting means therefor. Itwill readily be seen and understood h ow, by working jack 13 up and downthe crane boom carrying the loading shovel or scoop 21 is raised andlowered.

I will now describe the mechanism for operating the scoop 21 back andforth on the I beams so as to force said scoop into the coal to beloaded and away from the coal ready to be dumped. I will first, however,describe the means of propelling the truck, which are as follows,to-wit:-On the truck 7 as before stated, I place the motor 9, the shafton which it is mounted being marked 30 and on this shaft I place theclutch mechanism 31; on the aXle 32 of the truck 7 I place a gear 33,which meshes with a pinion 34 connected by intermediate mechanism toshaft 30 so as to take power fromthe motor9. By throwing the clutchmechanism 31 in the proper` direction, the

' power is transmitted to pinion 34 and gear 33 which is connected tothe aXle 32 of the truck and imparts-motion tothe truck 7 and propels itforward and backward, (see Fig. 2),. Of course any well knownintermediate means may be employed between the truck aXle and motor totransmit power to propel the truck.

Now to operate the scoop forward and backward. On shaft 30 of motor 9, Iplace a pinion wheel 34a,-which meshes with a gear wheel 35 on shaft 36supported on the truck 7, consequently the pinion wheel 34a, when shaft30 is revolving, is turned,

transmitting power to the gear wheel 35, which, mounted on shaft 36,turns said shaft. On this shaft 36 at each end thereof, I place a pinion37. On a shaft 38 supported on the truck 7, I place two gear wheels 39;the pinions 37 meshing with the gear wheels 39, thus the shaft 33 isturned. On each end of this shaft 33 I place a drum 40. Then the shaft3S turns in either direction these drums 40 turn with it. The mechanismjust described can be seen more particularly, in Figs. 2 and 5. On eachside of the machine a wire rope or cable 41 is connected to the scoop21, passing around sheaves 42 at forward end of the boom, thence withinoutside flanges of I beams 15 to the drums 40 under the rear end of theboom, passing several times around said drums 40, then withinpthe insideof flanges of I beams to a fastening at each side at rear end of scoop21. By operating the drums 40 in proper direction the cables 41 willpull the shovel or scoop 21 forward and backward on the I beams, therollers 29 in brackets 2O on the scoop rolling along the flanges of theI beams carrying the shovel or scoop with them.

It will be understood vthat by throwing the clutch mechanism 31 properlythe motor will propel the truck 7 without operating the crane andshovel, or can be made to operate the scoop mechanism, drums andconnecting gears, pinions and cables separately, or vice-versa.

The gage of loading or portable track being same as track for mine cars,the electric truck can travel to any part of mine, with boom and shoveldetached. When the coal has been shot down and is lying in masses, theloading machine is connected up and begins hauling coal nearest to crossentry. The machine is in position in front of the loose coal, the boomcarrying shovel is lowered by the jack 13 the shovel is forced under theloose coal by being forced to travel forward on the I beams; when shovelis filled, it is drawn back, the loading truck 7 is moved to the entry,stopping with boom and shovel over the entry or mine track. Crane isthen raised by jack carrying up the loaded shovel, mine car 4is thenpushed under shovel, and shovel unloaded, coal filling mine car. Thescoop is then again closed and the electric truck carries the crane andshovel .back for more coal.

On the bottom of the scoop 21, I attach rollers as 43, to reducefriction when loading scoop. If sides of shovel strike a large piece ofcoal, it can be drawn back, the electric truck moving forward or backuntil chunk of coal will go inside of the shovel.

By using my invention it will be readily seen that time and labor aresaved, that the machine is designed to do its work rapidly andefficiently.

I may deviate from the specifi-c construetion herein set forth andmodify same, and still remain within the scope of my invention.

The various parts of the machine may be made of any desired material andconnected together in any other manner than herein specifically setforth.

Vhat l claim as new and of my invention and desire to secure by LettersPatent is l. In a loading machine of the character described, a truck, acrane, said crane move ably mounted on said truck, a lifting jack, saidjack mounted on said truck and supporting the crane, a shovel, saidshovel mounted on said crane, said crane capable of being moved up anddown by said jack, and means for moving` the shovel forward and`backward, all combined and operating as set forth.

2. ln a loading machine of the character described, a truck, means forpropelling said truck, a crane, said crane pivotally mounted on the saidtruck, the frame of the crane being formed of I beams, cross bracesbetween said I beams, a lifting jack mounted on said truck, the cranesupported on said lifting jack and capable of being raised and loweredthereby, a shovel, said shovel mounted on said crane, rollers at the topof the shovel, means for moving the shovel forward and backward, therollers on the shovel traveling in the I beams when the shovel is forcedforward and backward all combined and operating as set forth.

Signed at Silerville, VVhit-ley county, Kentucky, this 10th day ofAugust, A. D. 1909.

RICHARD T. MCKEEN.

Witnesses:

M. M. TUTT, D. S. WALKER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, I). C.

